1-(4-Ethylphenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid CAS 1239765-18-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1239765-18-4 |
| Molecular Formula | C16H15N3O2 |
| Molecular Weight | 281.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 1-(4-Ethylphenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (CAS 1239765-18-4) pharmaceutical standards reference standard. Molecular formula: C16H15N3O2. Molecular weight: 281.31 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C16H15N3O2 |
| Molecular Weight | 281.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
Related Ethylphenyl Standards
- (2E)-1-(4-Ethylphenyl)-3-(3-nitrophenyl)prop-2-en-1-one (CAS 1566593-88-1)
- (2E)-3-(4-Ethylphenyl)-1-(4-nitrophenyl)prop-2-en-1-one (CAS 864784-21-4)
- N-(2-Ethylphenyl)-3-(2-methoxyphenyl)acrylamide (CAS 535957-43-8)
- 2-(4-Ethylphenyl)-5-phenyl-1H-imidazole-4-thiol (CAS 1325305-91-6)
- 3-(4-(4-Ethylphenyl)thiazol-2-yl)aniline (CAS 886496-14-6)
- 4-(4-Ethylphenyl)-2-hydrazinyl-6-(trifluoromethyl)pyrimidine (CAS 861439-49-8)
- Methyl 2-(4-ethylphenyl)-1H-benzo[d]imidazole-6-carboxylate (CAS 1416342-83-0)
- 2-(((2-Ethylphenyl)amino)methyl)isoindoline-1,3-dione (CAS 301223-08-5)
Recommended Standards
- 1-(4-(2-Cyanopropan-2-yl)phenyl)-4-hydroxy-2-oxo-1,2,5,6-tetrahydropyridine-3-carbonitrile (CAS 1236409-67-8)
- 2-[4-(Dimethylamino)phenyl]-1h-1,3-benzodiazole-7-carboxylic acid (CAS 124340-96-1)
- N-((3-Methyl-1,2,4-oxadiazol-5-yl)methyl)-2-(naphthalen-1-yl)acetamide (CAS 1235063-81-6)
- 2-(Dipropylamino)acetohydrazide (CAS 2644-34-0)
- Methyl 3-(4-bromophenyl)-1H-pyrazole-5-carboxylate (CAS 78842-74-7)
- n-[4-(2-aminoethoxy)phenyl]-N-methanesulfonylmethanesulfonamide hydrochloride (CAS 1432680-63-1)
- Moxifloxacin Impurity 46 (CAS 141290-02-0)
- n-(3-Ethoxypropyl)bicyclo[2.2.1]heptan-2-amine (CAS 1247415-99-1)
- 3-Iodo-5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 1458593-85-5)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com